I talked to a rep for ferrea at NOPI in ATL this past weekend he told me that they just finished the testing on the valves for the tC. He went on to say that they would rev to 9000 rpms!! I went to their site but they're not up yet so........... Anyway does anyone else know anything about this??

 

well to make power that high i think we would need new rods wouldnt we??? and new cams????

 

We would need alot of new things besides just rods and cams. Maybe they are saying they would safely handle 9K rpms before any possibility of failure.

 

w00t w00t!!

aftermarket internals would be nice...

 

well to handel them i know we can my tc has reved just 300rpms shy of that before and zpi said they can rev theres to 11k i dont think it would last lone like that lol but it can do it


also new valve springs and i think that is all we would need right??? maybe some new barings


but you probly wouldnt want an underdrive pully with out a harmonic balancer then lol

 

No kidding there! Rods, studs, pistons, valve springs, dynamic balancing, oiling improvements ect...

It's nice to know there are valves that can take it, but the rest of the engine cannot take a 50% increase in revs ( reliably) without work elsewhere.

 

rods are already very good. pistons would be nice (8.8:1 forged for FI)
the valvetrain is probably going to be the key to keeping the engine happy with lotsa power and miles

 

Removing the HB would make it shell even faster at those RPM's. There is a reason for the balancer.

And you would need a LOT more stuff to handle those RPM levels on a constant basis. Try pistons, entire valvetrain, most likely a lot of modding to the oiling and cooling system etc.

 

the cooling system would have to be massively upgraded if you consistently hit that. that's a little much for the 2az-fe FWD platform IMO...

 

 

curious to see some forged pistons like matty said

 

I'm just repeating what the rep told me and his words were" They'll rev to 9 grand no problem". Oh and he have one there and it had a new valve spring with it so........ I do kinda agree with having the internals but I doubt it would be necessary. I mean if the car can handle 7 psi of boost with no problems it could handle 9 grand. Now i'm not saying you should do that on a regular basis. But I think it could hold up.

 

Different physics involved when your talking about cylinder pressure and piston speed. Upping the cylinder pressure doesn't make the internals move faster.

 

We just need really light Arias pistons or something. The long stroke on the motor is not meant for high rpms. If you want safer high rpms, de-stroke the motor a bit, along with the engine build, and you can rev higher safely.

 

I wonder if there's a way to compare the heat created by forced induction to the heat created by RPM increase. I'm sure they don't increase parallelly(sp?), but there's gotta be a way to figure out how much temperatures increase for each method. I think I'm j/speaking nonsense..don't mind me.

 

um just monitor tranny temps, oil temps and maybe intake and exhaust temps on a turbo and a n/a car and incress the rev limiter on both to see how mutch the car can take

 

You need to get Cosworth or Mahle to make pistons. Every bike engine we built with Cosworth pistons made 4% more power than anybody elses. They chose their alloy for strength at temperature, and it delivers.

JUN has a lock on the 2JZ market. It would be a wise tuner who sets up a deal for the 2AZ.

 

Joe is working for internals for the 2az-fe

 

we can get forged pistons no problem already - we have a set on order on the way to us - will post pics when we get them in hand

they are cp pistons - we can special order whatever you need

and we are working with a valvetrain company in springs, retainers and valves that will be released within the next 2 months

 

and so is James LOL